自定义交易组件的事件回调，没有订单状态回调。意思是说用户无法在微信视频号-订单里面操作售后吗，否则第三方平台收不到回调

https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/callback/Introduction.htmlhttps://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/m_guideline.html